I was readin a walkthrough at gamefaqs, and someone brought this up. I had to check it out. Right before Vaan and co. rush off to save Penelo in Bhujerba, there's a scene of them getting in the Strahl discussing how to get there. In this scene, Vaan walks up behind Fran's seat and takes a moment to "admire" her "assets". She thens shoots daggers at him, and he walks away.
I didn't notice this the first time I played through FFXII, but once I saw it on Youtube, I totally lol'd.
Start paying close attention at 1:07!
Also, has anyone else spotted subtle things like this?
P.S. Why can't we embed videos?